Search results for "SNP marker"

showing 4 items of 4 documents

Genome-wide homozygosity in Maremmana cattle

2017

The current availability of large numbers of single nucleotide polymorphisms (SNPs) throughout the genome makes these markers particularly suitable for the detection of patterns of genetic diversity and of genome-wide homozygosity in animal populations. The aim of this work was to estimate genetic diversity and homozygosity in the Maremmana cattle breed. We used a sample of 149 animals (males and females) geno-typed with the BovineSNP50 v2 (54K) Illumina BeadChip. After editing for call-rate >0.9 and removing SNP unassigned or on the sex chromosomes, 128 animals and 50,814 SNPs were left. We estimated the following genetic parameters: observed and expected heterozygosity (Ho and He), minor …

Bivine GenomeSettore AGR/17 - Zootecnica Generale E Miglioramento Geneticoruns of homozygosity (ROH)genome-wide homozygositySNPs Markers Bivine Genome Marremmana Breed runs of homozygosity (ROH)maremmana cattleSNPs MarkersSNP markersMarremmana BreedROH Maremmana breed SNPs autozygosity
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Genome-wide analysis reveals the patterns of genetic diversity and population structure of 8 Italian local chicken breeds

2021

The aim of this study was to conduct a genome-wide comparative analysis of 8 local Italian chicken breeds (Ermellinata di Rovigo, Millefiori di Lonigo [PML], Polverara Bianca, Polverara Nera, Padovana, Pepoi [PPP], Robusta Lionata, and Robusta Maculata), all under a conservation plan, to understand their genetic diversity and population structure. A total of 152 animals were analyzed using the Affymetrix Axiom 600 K Chicken Genotyping Array. The levels of genetic diversity were highest and lowest in PML and PPP, respectively. The results of genomic inbreeding based on runs of homozygosity (ROH; FROH) showed marked differences among breeds and ranged from 0.161 (PML) to 0.478 (PPP). Furtherm…

Candidate geneGenetics and Molecular BiologyContext (language use)BreedingRuns of HomozygosityPolymorphism Single NucleotideSettore AGR/17 - Zootecnica Generale E Miglioramento GeneticoPépoigenetic diversity population structure local poultry breed SNP marker runs of homozygosityAnimalsCluster AnalysisInbreedingGenotypinglcsh:SF1-1100runs of homozygosityGenetic diversityGenomebiologyHomozygoteGenetic Variationpopulation structuregenetic diversityGeneral Medicinebiology.organism_classificationSNP marker; genetic diversity; local poultry breed; population structure; runs of homozygosityItalyEvolutionary biologylocal poultry breedSNP markerAnimal Science and Zoologylcsh:Animal cultureChickensPurebredInbreedingGenome-Wide Association StudyPoultry Science
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Genomic characterization of the Braque Français type Pyrénées dog and relationship with other breeds

2018

The evaluation of genetic variability is a useful research tool for the correct management of selection and conservation strategies in dog breeds. In addition to pedigree genealogies, genomic data allow a deeper knowledge of the variability and genetic structure of populations. To date, many dog breeds, such as small regional breeds, still remain uncharacterized. Braque Français type Pyrénées (BRA) is a dog breed originating from a very old type of gun-dog used for pointing the location of game birds to hunters. Despite the ancient background, the knowledge about levels of genetic diversity, degree of inbreeding and population structure is scarce. This may raise concerns on the possibility …

0301 basic medicinedogsHeredityPopulation geneticsLinkage DisequilibriumDog Genetic diversity SNP Markers Braque Français type Pyrénées LUPA project Dog GenotypingDog Genetic diversitySettore AGR/17 - Zootecnica Generale E Miglioramento GeneticoEffective population sizegenetic parametersInbreedingMammalseducation.field_of_studyGenomeMammalian GenomicsMultidisciplinaryEcologyPets and Companion AnimalsSNP MarkersQREukaryotaBraque Français type PyrénéesBreedLUPA projectVertebratesGenetic structureMedicineInbreedingResearch ArticleGenotypeEcological MetricsPopulation SizeScienceAnimal TypesPopulationSNPBiologyPolymorphism Single Nucleotidediversity03 medical and health sciencesPopulation MetricsEffective Population SizeGeneticsgenomicsAnimalsgenetic distancesGenetic variabilityeducationDog GenotypingBraque Français SNP array Genetic diversity and population structurePopulation DensityEvolutionary BiologyGenetic diversityWolvesPopulation BiologyEcology and Environmental SciencesOrganismsGenetic VariationBiology and Life Sciencesbraque françaisBayes TheoremSpecies DiversityGenetics Population030104 developmental biologyAnimal GenomicsEvolutionary biologyAmniotesZoologyPopulation Genetics
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A genome‐wide comparison between selected and unselected Valle del Belice sheep reveals differences in population structure and footprints of recent …

2023

About three decades of breeding and selection in the Valle del Belìce sheep are expected to have left several genomic footprints related to milk production traits. In this study, we have assembled a dataset with 451 individuals of the Valle del Belìce sheep breed: 184 animals that underwent directional selection for milk production and 267 unselected animals, genotyped for 40,660 single-nucleotide polymorphisms (SNPs). Three different statistical approaches, both within (iHS and ROH) and between (Rsb) groups, were used to identify genomic regions potentially under selection. Population structure analyses separated all individuals according to their belonging to the two groups. A total of fo…

Food Animalsselection signaturecandidate geneOvis ArieAnimal Science and ZoologyGeneral Medicinepopulation genomicSNP markersJournal of Animal Breeding and Genetics
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